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Intrinsic viscosity–number average molecular weight relationship for poly(1,4‐butylene adipate) diol
Author(s) -
Yin Na,
Zeng ZuoXiang,
Xue WeiLan
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.32058
Subject(s) - adipate , diol , polymer chemistry , tetrahydrofuran , adipic acid , intrinsic viscosity , molecular mass , toluene , molar mass distribution , viscosity , polymerization , materials science , tacticity , chemistry , polymer , organic chemistry , composite material , solvent , enzyme
Abstract The relationship between number average molecular weight ( M n ) and intrinsic viscosity ([η]) was studied for poly(1,4‐butylene adipate) diol (PBAD) in tetrahydrofuran, toluene, and ethyl acetate at 25°C. Thus, a series of PBAD samples were prepared by polymerization between 1,6‐adipic acid and 1,4‐butanediol. The values of M n for the samples were determined by end‐group analysis as well as by ebulliometry, and the average difference of M n between the two analysis ways was about 2.69%. The Mark–Houwink–Sakurada equations for PBAD were obtained to relate [η] with M n in the range of 1900–10,000. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010